The DOI matches its Crossref record.
A Mutant of TTX-Resistant Cardiac Sodium Channels with TTX-Sensitive Properties
Abstract
The cardiac sodium channel α subunit (RHI) is less sensitive to tetrodotoxin (TTX) and saxitoxin (STX) and more sensitive to cadmium than brain and skeletal muscle (μl) isoforms. An RHI mutant, with Tyr substituted for Cys at position 374 (as in μl) confers three properties of TTX-sensitive channels: (i) greater sensitivity to TTX (730-fold); (ii) lower sensitivity to cadmium (28-fold); and (iii) altered additional block by toxin upon repetitive stimulation. Thus, the primary determinant of high-affinity TTX-STX binding is a critical aromatic residue at position 374, and the interaction may take place possibly through an ionized hydrogen bond. This finding requires revision of the sodium channel pore structure that has been previously suggested by homology with the potassium channel.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
From Ionic Currents to Molecular Mechanisms
Catterall, W. A. (2000) · Neuron · doi:10.1016/s0896-6273(00)81133-2 · Cited by 2,118
The Role of Voltage-Gated Sodium Channels in Pain Signaling
Bennett, D. L., Clark, A. J., Huang, J., Waxman, S. G., & Dib-Hajj, S. D. (2019) · Physiological Reviews · doi:10.1152/physrev.00052.2017 · Cited by 730
Overview of the voltage-gated sodium channel family
Yu (2003) · Genome biology · doi:10.1186/gb-2003-4-3-207 · Cited by 694
Resurgence of sodium channel research
Goldin, A. L. (2001) · Annual Review of Physiology · doi:10.1146/annurev.physiol.63.1.871 · Cited by 688
Dib-Hajj, S. D., Tyrrell, L., Black, J. A., & Waxman, S. G. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.15.8963 · Cited by 503
Metadata
- Authors
- Satin, J., Kyle, J. W., Chen, M., Bell, P., Cribbs, L. L., Fozzard, H. A., & Rogart, R. B.
- Venue
- Science
- Published
- 1992-05-22
- Volume
- 256
- Issue
- 5060
- Pages
- 1202-1205
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2093297294
- Cited by
- 389
- References
- 0
- FWCI
- 8.53
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: A Mutant of TTX-Resistant Cardiac Sodium Channels with TTX-Sensitive Properties. https://app.cochat.ai/papers/10.1126/science.256.5060.1202
- The paper
- Satin, J., Kyle, J. W., Chen, M., Bell, P., Cribbs, L. L., Fozzard, H. A., & Rogart, R. B. (1992). A Mutant of TTX-Resistant Cardiac Sodium Channels with TTX-Sensitive Properties. Science. https://doi.org/10.1126/science.256.5060.1202
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
